My mac is running High Sierra, Time machine failed on my Apollo cloud 4TB it starts its innital backup and got to like 200gb (2 days) of 1.6TB and then just stopped and went back to innitialising first backup.

I have tried over 10 times and it's taken over a week but same result, I have tried all suggestions to unmount the timachine folder whilst I logon etc. None of this works.

So I did a backup on my external HDD via USB which worked immedialty  and I thought I could copy this backup to the Apollo which worked when I copied to the Apollo Anywhere folder but I now cannot copy to the Time Machine Folder. I have tried by FInder but it will not copy and says the Time Machine folder is the wrong format for Time MAchine Backups. I've now given up.